B423 N08825 Pipe MAWP Calculator

ASTM B423 N08825 (825) Pipe SMLS, 42Ni-21.5Cr-3Mo-2.3Cu, C.D. ann

Pressure Ratings > Pipe MAWP > B423 N08825

Material Properties

Specification

B423 N08825

Description

ASTM B423 N08825 (825) Pipe SMLS, 42Ni-21.5Cr-3Mo-2.3Cu, C.D. ann

Tensile Strength

85 ksi

Yield Strength

35 ksi

B16.5 Flange Group

Group 3.8 — Ni-Cr-Mo Alloys

Min Design Temperature

-325 °F

Y Coefficient

Ref 7 — Nickel alloys: N06617, N08800, N08810, N08825

Calculator Settings

Corrosion Allowance (in)

Mill Tolerance (%)

Units

Schedule Selection

STDXSXXS10S40S80S2030406080120140160

Temperature Selection

100 °F150 °F200 °F250 °F300 °F350 °F400 °F450 °F500 °F550 °F600 °F650 °F700 °F750 °F800 °F850 °F900 °F950 °F1000 °F

Maximum Allowable Working Pressure (psig)

NPS	OD (in)	100 °F	200 °F	300 °F	400 °F	500 °F	600 °F	700 °F	800 °F
1/8	0.405	7,758	7,758	7,758	7,758	7,758	7,758	7,758	7,658
1/4	0.54	7,500	7,500	7,500	7,500	7,500	7,500	7,500	7,404
3/8	0.675	6,070	6,070	6,070	6,070	6,070	6,070	6,070	5,992
1/2	0.84	5,820	5,820	5,820	5,820	5,820	5,820	5,820	5,745
3/4	1.05	4,746	4,746	4,746	4,746	4,746	4,746	4,746	4,685
1	1.315	4,438	4,438	4,438	4,438	4,438	4,438	4,438	4,381
1 1/4	1.66	3,655	3,655	3,655	3,655	3,655	3,655	3,655	3,608
1 1/2	1.9	3,287	3,287	3,287	3,287	3,287	3,287	3,287	3,245
2	2.375	2,770	2,770	2,770	2,770	2,770	2,770	2,770	2,734
2 1/2	2.875	3,029	3,029	3,029	3,029	3,029	3,029	3,029	2,990
3	3.5	2,630	2,630	2,630	2,630	2,630	2,630	2,630	2,596
3.5	4	2,399	2,399	2,399	2,399	2,399	2,399	2,399	2,368
4	4.5	2,230	2,230	2,230	2,230	2,230	2,230	2,230	2,201
5	5.563	1,955	1,955	1,955	1,955	1,955	1,955	1,955	1,929
6	6.625	1,776	1,776	1,776	1,776	1,776	1,776	1,776	1,753
7	7.625	1,655	1,655	1,655	1,655	1,655	1,655	1,655	1,634
8	8.625	1,563	1,563	1,563	1,563	1,563	1,563	1,563	1,543
9	9.625	1,486	1,486	1,486	1,486	1,486	1,486	1,486	1,467
10	10.75	1,418	1,418	1,418	1,418	1,418	1,418	1,418	1,400
12	12.75	1,224	1,224	1,224	1,224	1,224	1,224	1,224	1,209
14	14	1,113	1,113	1,113	1,113	1,113	1,113	1,113	1,099
16	16	972	972	972	972	972	972	972	959
18	18	862	862	862	862	862	862	862	851
20	20	775	775	775	775	775	775	775	765
22	22	703	703	703	703	703	703	703	694
24	24	644	644	644	644	644	644	644	636
26	26	594	594	594	594	594	594	594	586
28	28	551	551	551	551	551	551	551	544
30	30	514	514	514	514	514	514	514	508
36	36	428	428	428	428	428	428	428	422
42	42	366	366	366	366	366	366	366	362
44	44	350	350	350	350	350	350	350	345
46	46	334	334	334	334	334	334	334	330
48	48	320	320	320	320	320	320	320	316

Custom Wall Thickness

NPS

Wall Thickness (in)

Allowable Stress vs Temperature

Matching Flange Group

Group 3.8 — Ni-Cr-Mo Alloys(B462 N10276, B564 N06625, B564 N08825, B462 N06022)

Disclaimer: This calculator is for guidance only. Results are based on ASME B31.3-2024 allowable stresses for seamless pipe (Ej=1.0, W=1.0). Always verify against the current edition of the standard. The engineer of record is responsible for all design decisions.